Computing mechanism.



A. G. SNYDER.

COMPUTING MECHANISM.

APPLICATION FILED JUNE 3, 1910.

Patented Mar. 23, 1915.

4 SHEETS-SHEET 1.

\ [NVENTOR G SNYDER. COMPUTING MECHANISM.

APPLICATION FELED JUNE 3, 1910.

Patented Mar. 23, 1915 4 SHEETS-SHEET 2.

a x R A. G. SNYDER.

COMPUTING MECHANISM.

APPLICATION FILED JUNE 3, 1910.

Patented Mar. 23, 1915.

4 SHEETS-SHEET 3.

n O v, VENTOR W L FIG 5 6 oz? Jag- WITNESS A. G. SNYDER.

COMPUTING MEQHANIQM.

APPLICATION FILED JUNE 3, 1910.

1,1 32,804. Patented Mar. 23, 1915.

4 SHEBTS-SHEET 4.

Wm-vss I ,7 INVENTOR- By r Attorney 8 UNITED STATES PATENT OFFICE.

AUGUSTUS G. SNYDER, OF UTICA, NEW YORK, ASSIGNOR BY MESNE ASSIGNMENTS,TO GEORGE H. SPITZLI, F UTICA, NEW YORK.

COMPUTING MECHANISM.

tain new and useful Improvements in Complication for Letters trativepurposes merely, and that the in-- puting Mechanisms, of which thefollowing is a specification, reference being had therein to theaccompanying drawings;

This invention relates to computing and registering machines and isherein shown and described as embodied in' a machine of the general typeof that disclosed in my ap- Patent filed May 28, 1910, Serial No.564,300, although, as will hereinafter appear to those skilled in theart,

the utility of many features thereof is not by any meanslimited tomachines of thi type.

One object of the invention is to provide a computing attachment fortypewriting machines which will be universally applicable to allmachines without reference to size, dimensions, or features ofconstruction.

A further object of the invention is to provide an improved form ofcontrolling mechanism corresponding in general function to theescapement mechanism described and shown inmy application aforesaid.

These and other objects of the invention, together with means wherebythe same may be carried into effect, will best be understood from thefollowing description of one form or embodiment thereof illustrated inthe'accompanying drawings. It is'to be understcod, however, that theconstruction described and'shown has been chosen for illusvention may beembodied in many other forms without departing from the spirit and scopethereof.

In said drawings, Figure l is a side elevation, partly in section, of aportion of a typewriter having my invention applied thereto; Fig. 2 is adetail perspective view of aportion of the totalizer carriage; Fig. 3

is a rear elevation of the computer mechanism, the totalizer carriage,rear cover plate, and operating arms being removed; Figs. 4 and 5 aredetail views showing one of the stop hubs, stop arms, and operating rodsfrom opposite sides and in two different positions; Fig. 6 is a detailelevation of the Specification of Letters Patent.

Application filed June3, 1910. Serial No. 564,875.

and fed in any usual Patented Mar. 23, 1915.

actuating shaft and parts associated there w th; Fig. 7 is a sectionalview thereof; Fig. 8 1s an edge view of one of the actuator gears withits attached stop hub; Figs. 9 and 10 are face views of two of theactuator gears; Figs. 11 and 12 are detail views showng a stop hub andits cooperating stop arm ln-two different relative positions; and Figs.13 and 14 are sectional views showing one of the groups of partsassociated with the actuating shaft in two diiferent'positions.

The computing mechanism herein shown is preferably constructed as anattachment for typewriting machines, and, as above noted, it is one ofthe objects of the invention to provide mechanism which will be readilyapplicable to mechanism of this character, but it will be obvious tothose skilled in the art that, with slight mrdification of theconstruction about to be described, this computing mechanism might beembodied in a machine independent of the typewriting mechanism, and suchis considered to tion.

20 denotes a typewriter framehaving a. carriage 21, movablelongitudinally thereof or well known manner, and 22 one of the keylevers for operating the type-writing mechanism.' In order to avoidconfusion the remaining features of the typewriter construction areomitted.

The general organization of the computing machine herein shown, as tothe relationship of the various cooperating parts, is substantiallysimilar, except as hereinafter pointed out, to that shown and describedin my prior application above specified, to which reference may pleteexposition of the construction and operation ofparts not fully shown anddescribed herein. As in said prior application the totalizing mechanismincludes one or more totalizers 23 movable with the typewriter carriage21 in the feed of the latter, and having a series of gears 24 brought,during said feed, successively into engagement with a master gear .25which is actuated or rotated, through suitable connecting mechanism. bymeans of a motor or actuator 26 (Fig. 3), the times and amounts of saidrotation being governed bv suitable mechanism controlled by arms 27(Fig. 1)

be within the scope of the invenbe had for a more com-,

preferably detachably and adjustably connected with the numeralkeylevers of the v typewriter by stirrups 28 and adjusting screws 29.

As herein shown the computer frame 30,

which is attachedto the typewriter frame by any suitable means such asbolts 31, is.

36. As shown the totalizer is secured to thecarriage 35 by means of ahooked lug 37 (see Fig. 1) carried by the totdlizer casing and engagingin one of a series of notches 38 (see Fig. 2) formed in said carriage,and a set screw 39 entering a' recess 40 in'said totalizer casing. Bythe use of the separate totalizer carriage the mechanism is renderedreadily applicable to any typewriting machine without reference to theheight of the typewriter frame or the form or location of the typewritercarriage, variations in these parts being easily provided for merely byvarying the size or form of the arm36.

The preferred construction of the various parts of the mechanism foroperating the totalizing mechanism will now be described in detail andthe operation thereof will thereafter be fully described. The mastergear 25 is mounted on a shaft 41 journaled.

in thecomputer frame, and is driven by a countershaft 42, preferably bymeans of a. gear 43 mounted on said countershaft and meshing directlywith said master gear, said countershaft 42 forming an operativeconnection between said master gear and a second countershaft 44constituting the actuating shaft of the machine. The shafts 42 and 44are preferably arranged parallel to i one another and are provided withconnect ing mechanism, controlled by means hereinafter described,whereby the shaft 42 is caused to make a certain predetermined fractionof a rotation at each complete rotation of the actuating shaft. Theshaft 42 is provided with a series of collars 45 secured to said shaftfor rotation therewith by pins 46, and with a series of gears 47 looselymounted there on. The adjacent collars and gears are provided withcooperating ratchet clutch faces 48, whereby the shaft 42 may be rotatedin one direction independently by each of said gears 47. For holding theclutch faces of each air normally in engagement there are providedsprings 49 interposed between adjacent gears and collars and preferablreceived in rec esses formed in the faces of these members. For normallyholding the gears 47 against .rotation each of said. gears is preferablyhaving a' progressively varying number of teeth, herein shown as fromone to nine, The gears 52 are adapted to mesh respectively with thegears 47 in pairs as shown, and-although said gears 52 are preferablymovable longitudinally of the shaft 44, this movement is preferablyinsufiicient in amount to move said gears 52 out of engagement oroperative relationship with the gears 47, whereby the relative angularpositions of these gears will remain undisturbed. This'is illustrated inF ig; 3 in which the gears 52 are shown as at the limits of theirmovements toward the left but still in position to engage or be engagedby the gears 47.

Intermediate the gears 52 there are fixed to the shaft 44,- as by pins53, a series of collars 54, said gears and collars having cooperatingclutch faces 55 (see Figs. 7, l3,

uously, being preferably geared to a continuously running motor 26supported by the computer frame by a gear 58 secured to said shaft 44and a gear 59 secured to the motor shaft 60. From the foregoing it willbe seen. that when the clutch face 55 of any of the gears 52 is inengagement with the cotiperating clutch face of the adjacent collar 54,the shaft 42, and consequently the master gear 25, will, at eachrotation of the shaft 44, be turned through a fraction of a rotationdepending in amount upon the number of teeth upon the gear 52 inquestion. For controlling the connection of the respective gears 52 withthe shaft 44 the following stop mechanism is provided. Each of the gears52 is provided with a stop hub 61 fast thereto, said stop hub havingon'its periphery a projection 62 providing a lateral cam face 63 (seeFig. 8) and beyond said projection a stop shoulder 64. A por tion 65beyond sa'id stop shoulder is preferably formed on a radiussubstantially equal to that of the outer end of said stop shoulder andis cut away at 66 immediately in front of the projection 62.Qooper'ating with each of the stop hubs 61 is a stop arm 67, said armshaving inturned ends 63 lying adjacent the collars 54 and in a positionto cotiperate with the stop shoulders 64, said ends being preferablybeveled to cooperate with the cam faces 63, thereby tending to ion movethe hubs 61 and gears 52 to release the clutch members 55. The stop arms67 are pivoted at 69 in the computer frame, and

are normally held with their ends 68 in,

formed with cam surfaces 71 terminating in recesses. 72 providingshoulders 73. Mount: ed for longitudinal movement in the computer frameis a' series of operating rods 74 (see Figs. 1, 4 and 5) each held by aspring 75 with one of its ends in engagement with one of the operatingarms 27. To the op posite end of each of the rods 74 is pivoted atoothed wheel or ratchet 76, the teeth of said ratchets beingconstructed and arranged to "engage the cam surfaces 71 and enter therecesses 72 of the respective stop arms 67. Coiiperating with theratchets 76 is a series, of spring pressed pawls 77.

The operation of the mechanism above described is as follows. Assuming,for convenience, that the key lever 22 corresponding to the numeral isdepressed, such depression will cause the corresponding arm 27 to beoperated and the rod 74 in engage ment therewith to be movedlongitudinally in the direction indicated by the arrow on. Fig.5 inopposition to the spring 75. One of the teeth of the ratchet 76 being atthis time held by the pawl 77 against movement with the rod 74, saidratchet will be partly rotated, causing an opposite tooth to engage thecam surface 71 of the corresponding stop arm 67 (as shown in- Fig.-5)andthereafter to enter the recess 72 of said arm, the parts then beingin the position shown in Fig.1. During this operation the stopar'm willbe rocked in opposition to the spring pressed plunger and immediatelyreleased and again placed under the influence of said plunger. Thisrocking of the stop arm causes the end' 68 thereof to be momentarilyremoved from engagement with the stop shoulder 64 and cam face 63 of thecorresponding stop hub 61, thereby permit-. ting the correspondingspring56 to move the gear 52 to which said stop hub is attached longitudinallyof the shaft 44, bringing the clutch faces 55 into engagement as shownin Fig. 14, and causing said gear to be rotated by said shaft. Theimmediate release of the stop arm 67 by the ratchet 76 causes theplunger 70 to press the end 68 of said arm into engagement with theperipheral portion 65 of the stop hub 61, as shown in Fig. 12, so thatwhen the cut away portion 66 is reached said end will be brought to aposition to engage the cam surface 63. Such engagement will cause thegear 52 to be moved longitudinally of the shaft 44 to from the positionshown release the clutch, members 55, the stop shoulder 64 beingthereafter brought into engagement with said end 68, thereby stoppingthe gear 52 after one complete rotation thereof (see Figs. 11 and 13).

above noted the gears 52 are formed with a progressively varying numberof teeth, the number of teeth on any particular gear being chosen inaccordance with the nu meral key lever with which it is connected by thetrain of mechanism above described. In the present embodiment of theinvention the gear 52 connected with the 6 key is provided with sixteeth as shown in Fig. 9, that connected with the 9 key is provided withnine teeth, as shown in Figs. 8 and 10, and the others in accordancewith this ratio. The depression of the 6 key, and the consequentoperation of the mechanism controlled thereby as above described, willtherefore cause the corresponding gear 52, during its single completerotation, to rotate thegear 47 on the shaft 42 with which it is in meshthrough an arc corresponding to six teeth. Each of the gears. 47 arepreferabl-y provlded with ten teeth, so that the gear 47 in questionwill be moved through SIX tenths. of a rotation... The actuation of ipermit the ratchet clutch members 48 to move over one another idly. Bythese means. the master gear 25 is turned through a fractional rotationand the totalizer 23 actuated (as more fully described in my applicationaforesaid) an amount determined bythe key lever which has beendepressed. Upon the release of the key lever the spring 75 will cause amovement of the rod 74 in Fig. l in the directloniindicated by the arrowon Fig. 4. The tooth of the ratchet 76 which has entered the recess 7 2in the stop arm 67 will be held by the shoulder 7.3 against thismovement, so that said ratchet will be rotated, causing an oppositetooth to press back the pawl 77, and the rod 74 returned to normalposition without affecting the stop arm 67.

It will be seen that the clutch members 55, and associated devices,provide means for positively totalizer 23 in a manner and at a timedetermined by the operator. In order to provide against damage to theparts in case of improper operation there is preferably interposedbetween the motor 26 and the actuating shaft 44 a frictional or slipconnection which is normally permanent but which is adapted to yield ifnecessary. Such a connection is provided in the construction shown by afriction clutch comprising a connecting the actuator 26 and part of themotor 26 and a cooperating friction flange 79 on the motor shaft 60, thenormal pressure of saidflanges being adjustable by means of a screw 80.

It will be noted that the construction and arrangement of the rods 74,stop arms 67,

and associated parts are such that the stop mechanism is released tostart the operationof the computing mechanism during the first portionof the movement of a key22v and arm 27, or before'said keyis'fullydepressed. The remaining portion of the downward movement-of the key, sofar as the computing mechanism is concerned. is

an-idle one, the ratchet 76 having released the arm 67. The operation ofthe computing mechanism therefore continues during the. latter portionof the movementof' the key,.so that by the time the printing mechanismof the typewriter has completed its operation the computing operation isalso completed. This feature is of lmportance in a computing attachmentfor typewriters inasmuch as it is desirable that the speed at which thetypewriting mechanism may be operated be not in any way lim ted by thespeed of operation of the computing mecha-. nism.

having thus described my invention I claim and desire to secure byLetters Patent: 1. In a computing machine, the combination withtotalizing mechanism and a master gear for actuating the same, of operatng mechanism for said master gear including an-actuator, and means foroperatively connecting said actuator and totalizing mecha-- nismcomprising a series of gears and means for independentlyconnecting saidgears with said actuator. I 2. In a computing machine, the comb1nationwith totalizing mechanism and a master gear for'actuating the same, ofoperat ng mechanism for said master gear including a series ofgears,connections whereby each of said gears is adapted independently tooperate said master gear, an actuator, and means for independentlyconnecting said 1 gears with said actuator.

by each of said gears is adapted independently to operate said ,master'gear, and a second series of. gears for independently connecting each ofsaid first named gears with said actuator.

4:. In 'a computing machine, operating mechanism including, incombination, av

shaft, a series of collars on said shaft, a series of gears on saidshaft intermediate said collars, said collars and gears being nieasoa' Iprovided coiiperating clutch faces, and a spring interposed between eachof said gears and the next adjacent collar.

5. In a computing machine, the'combina tion with'totalizing mechanism,of operating-mechanism therefor including a shaft, a series of gears onsaid shaft, devices for normally holding each of said gears againstrotation, and devices whereby said shaft maybe rotated by each of saidgears.

-6. In a computingmachine, the combina tion with totalizing mechanism,of operat-- ing mechanism therefor including a shaft, a series ofgears'on said shaft, a series of" yielding, detents for normally holdingeach of said gears against rotation, and a ratchet connection betweeneach of said gears and said shaft.

7 In a computing machine, the combina-- tion with totalizing mechanism,of operatmg mechanism therefor including a motor,

a countershaft operatively connected with said totalizing mechanism, asecond countershaft operatively connected with said motor,

and means operatively connecting said countershafts for producingdifferential operations of said first named countershaft.

8. In a computing machine, the combina-' .tion with totalizingmechanism, of operatcounter-shaft operatively connected with said motor,and means operatively connecting said countershafts for controlling theoperation of said master gear by'said motor.

10. In a computing machine, the combination with totalizing mechanism,ofop erating mechanism therefor including a shaft, 2. series of gearsadapted independently to rotate said shaft, a motor, a counte'rshaftoperatively connected with saidmotor, and a second series of gears onsaid countershaft cooperating with the gears of said firstnamed series.

11. In a computing machine, in combination, a totalizer, a master gearfor operating said totalizer, a countershaft for operating said mastergear, a series of gears on said countershaft; devices for normallyholding ating said master gear, a series of gears on said countershaft,an actuator,- and means for independently connecting said gears withsaid actuator.

13. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including an actuator, a shaft, aseriesof gears on said shaft, means for independently connecting saidgearswith said actuator, devices for normally holding each of said gearsagainst rotation, and devices whereby said shaft may be rotated by eachof said gears.

14 In a computing machine, the combination with totalizing mechanism, ofoperating mechanism therefor including a motor, a countershaftoperatively connected with said totalizing mechanism, a series ofgearson said countershaft, a second cou'n' tershaft opcrativelyconnected with said motor, and means for independently conecting saidgears with said last-reared countershaft. V

15. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a motor, a countershaftoperatively connected with said totalizing mechanism, a series of gearson said countershaft, devices for normally holding each of said gearsagainst rotation,

devices whereby said countershaft may be rotated by each of said gears,a second countershaft operatively connected with said' motor, andmeansfor operatively connecting said gears with said last-named countershaft.

16. In a computing machine, operating mechanism including, incombination, two parallel shafts, a series of gears for each of saidshafts, and devices for operatively connecting the severalgears of eachseries with their respective shaftsg 17. In a computing machine,operating mechanism including, in combination two parallel shafts, aseries of gears loosely mounted on each of said shafts, and a pluralityof ratchet clutches for operatively connecting the several gears of eachseries with their respective shafts.

18'. In a computing machine, in combination, a totalizer, a master gearfor operating said totalizer, a countershaft for operating said mastergear, a second countershaft, a series of gearsfor each of saidcountershafts, and devices for operatively connecting the several gearsof each series with their respective countershafts.

19. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a shaft, :1 series of gearsadapted independently to rotate said shaft, a countershaft, a series ofgears on said countershaft, and devices for operatively connecting theseveral gears of said last-named series with said countershaft.

20. In" a computing machine, operating mechanism including, incombination, two parallel shafts, a' series of gears for each of saidshafts, the opposite gears of the respective series being in continuousengagement, and devices for operatively connecting the several gears ofeach series with their respective shafts;

21. In a computing machine, the combination withtotalizing mechanism, ofoperating mechanism therefor including a shaft, a series of gears onsaid shaft, devices for normally holding each of said gears againstrotation, devices whereby said shaft may be rotated by each of saidgears, a countershaft,

23. In a computing mechine, in combination, a totalizer, means foroperating saidtotalizer, an actuating shaft, a single countershaftoperatively connected with said totalizer operating means mechanismconmeeting said shafts for causing said countershaft to make apredetermined fraction of a rotation at each complete rotation of saidactuating shaft, and mechanism for controlling the amount of saidfraction.

24. In a computing machine. in combination, a totalizer, a master gearfor operating said totalizer, said totalizer and master gear beingrelatively movable to cause said master gear successively to engagedifferent portions of said totalizer, a countershaft for operating saidmaster gear, an actuating shaft, mech nism connecting said shafts forcausing said countershaft to make a predetermined fraction of a rotationat each complete rotation of said actuating shaft, and mechanism forcontrolling the amount of said fraction. w

25. In a computing machine, operating mechanism including, incombination, an actuating shaft, a countershaft, a series of gears foreach of said shafts, the gears of the respective series being arrangedin pairs and'the gears of each pair being constructed to cause saidcountershaft'to make a predetermined fraction of a rotation at eachcomplete rotation of said actuating shaft, and devices for operativelyconnecting the several gears of each series with their re spectiveshafts.

" 26. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefcr comprising a continuousiyrotating shaft,connecting mechamsm intermediate said nected from said shaft,nude-controlling termined amount thereby.

mechanism including means connecting said first named connectingmechanism to said shaft for causing said totalizing mechanism to beactuated v a predetermined, amount thereby. N

27. In a computing mechanism, the com-' bination'with' totalizlngmechanism, of opcrating mechanlsm therefor comprising a continuouslyrotating shaft, and controlling mechanism comprising a series of gearson said shaft each adapted to operate said totalizing mechanism aamount, and clutches for independently connecting each of said gears tosaid shaft. ".28. In a computing machine, in combination, a totalizer, amaster gear for operat ing said totalizer, a countershaft for operatingsaid master gear, a continuously rotatmg shaft, and controllingmechanism 1ncluding means foroperati'vely connecting said countershaftwith said continuously rotating shaft for causing'said totalizer to beactuated a predetermined amount."

a 29. In a computing machine, the combina" tion with totahzmg mechanism,of;operat-;-' ing mechanism therefor including; a counter shaft, :1seriesof gears adapte independently to rotate said counter-shaft, a continuously rotating shaft, and'controiling' mechanism including means foroperatively connecting the several gears of said series withsaid'continuously rotating shaft-for causing said totalizingmechanism tobe actuated a predetermined amount thereby.

- ,30. In a computing machine, the combination with totalizingmechanism, of operating mechanism therefor including a counter-' shaft,a series of gears on said countershaft', devices for normally holdingeach of said gears against rotation, devices whereby said countersha'ftmay be rotated by each of said gears, a continuously rotating shaft, and

means for operatively connecting the sev eral gearsof said series withsaid continuously rotating shaft for causmg said totahzmg mechanism tobe actuated a prede- 31. In a computing machine, in combination, atotallzer, a master gear for operating .said totalizer,'a countershaftfor operating said master gear, a" motor, asecond countershaft geared tosaid motor, and operative connections between said. countershafts forproducing differential operations of said first named countershaft.

32. In a computing machine, thccombination with totalizing mechanism, ofoperating mechanism therefor including a shaft,

shaft and said totalizing mechanism, and normally discon-v predetermineda series of gears adapted independently to rotate said shaft, :1 motor,a countershaft geared to said motor, and gears carried by saidcountershaft and cooperating with said first named gears- 33. In acomputing machine, the'cOmbina tion with totalizing mechanism, ofoperat-- ing mechanism therefor including a shaft,

a series ofgears on said shaft, devices for normally holding each ofsaid gears against rotation, devices whereby said-shaft may be rotatedby each of said gears, a motor, a countershaft geared, to said motor,and gears carried by said countershaft and'cooperating with saidfirst-named gears.

34.' In a computing machine, the combination with totalizing mechanism,of operating 'mechanism therefor including a motor, a countershaftoperatively connected with said totalizing mechanism, a secondcountershaftgeared to said motor, and means for operatively connectingsaid countershafts.

'35. In a computing machine, operating mechanism including, incombination, a motor, two parallel shafts one of said shafts beinggeared to said motor, a series of gears for each of. said shafts, anddevices for opcratively connecting the several gears of. each serieswith their-respective shafts.

- 36. In a computing machine, operating mechanism including, incombination, a motor, two parallel shafts one of said shafts beinggeared to said motor, a series of gears for each ofsaid shafts, theopposite gears of the respective series being in continuous en'-gag'ement,iand devices for operatively conmeeting the several earsof'each series with 1 their respective shafts. 37. In a computingmachine, the combination with totalizing mechanism, ofoperatingmechanism therefor comprising a con-- tinuously running motor, acountersha'ft geared thereto, and'controlling mechanismincluding meansfor operatively connecting said totalizing mechanism with saidcountershaft for causing said totalizing mechanism to be actuated athereby. I Y

38. In a computingmachine, the combination with totalizing mechanism, ofoperatpredetermined amount ing mechanism therefor comprising a seriestion with totalizing mechanism, of operatv.

with said firstiaa ' ing mechanism therefor named series, the gears ofone of said series.

having a progressively varying number of teeth.

. 4:1; In a computing machine,'the combination with totalizingmechanism, mechanism therefor including a motor, a countershaftop'eratively connected with said totalizing mechanism, a secondcountershaft operatively connected wit said motor, and a series of gearscarried by each of said countershafts, the gears of one-of said serieshaving a progressively varying number of teeth.

42. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor'ccmprising a continuously rotatingshaft, a series of gears on said shaft, and a second series ofcooperating gears operatively connected with said totalizing mechanism,the gears of one of said series having a progressively varying number ofteeth.-'

43. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor comprising a motor, a countershaftgeared to said motor, a series of gears on said countershaft, and asecond series'of 'cotiperating gears operatively connected with saidtotalizing mechanism, the

gears of one of said series having a progressively varying number ofteeth.

44. In a computing machine, operating mechanism including, incombination, a

shaft, a series of gears on said shaft, said gears having aprogressively varying number of teeth, and devices for independentlyconnecting each of said gears to said shaft.

45.. In a computing attachment for typewriters, operating mechanismincluding, in combinaticn, a shaft, a series of gears on said shaft,said gears having a progressively varying number of teeth, devices forindependently connecting each of said gears to said shaft, and means forconnecting each of said devices with a key lever of a typewriter. i

46. In a computing machine, operating mechanism including, incombination, a shaft, a series of gears loose on said shaft,

said gears having a progressively varying number of teeth, and a seriesof collars fast on said shaft intermediate said gears,-. the adjacentcollars and gears of said series being providedwith coiiperating clutchfaces.

47. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a series of rotatable members,an actuator for said mem-. bers, connecting mechanism for causing saidtotalizing mechanism to be actuated a predetermined amount at eachrotation of each of operating.

of said rotatable members, and mechanism for connecting each of saidrotatable members with said actuator and for automatically disconnectingthe same therefrom when said member has been rotated a fixed amount bysaid actuator..

48. In a computing machine, in combination, a totalizer, a master gearfor operating said totalizer, a countershaft for operating said mastergear, a series of rotatable members and connections for causing saidcountershafttobe bers, and mechanism for connecting each of saidrotatable members with said actuator and for automaticallydisconnectingthe same therefrom when said member has been rotated 21 fixed amount bysaid actuator.

49. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a shaft, aseries of gearsadapted independently to retate said shaft, a second shaft, a secondseries of gears on said last-named shaft and cooperating respectivelywith the gears of said first-named series, and mechanism 'for connectingeach of said last-named gears with said last-named shaft and forautomatically disconnectingthe same therefrom when said gear has'beenrotated a fixed amount by said shaft.

50. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a motor, a countershaftoperatively connected with said totalizing mechanism, a second countershaft operatively connected with said motor, a series of gears carriedby each of said shafts, and a stop mechanism for each of the gears ofone of said series for causing said gear to be rotated a fixed amount ateachoperation of said stop mechanism.

51. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a continuously rotating shaft,a series of gears on said shaft, and a stop mechanism for each of saidgears for causing said gear to be-rotated a fixed amount by said shaftat each operation of said stop mechanism.

52. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including two series of cooperatinggears, the gears of one of said series-having a progressively varyingnumber of teeth, and a stop mechanism for each of the gears of one ofsaid series for causing said gear to be rotated a fixed amount at eachoperation of said stop mechanism.

53. In a computing machine, the combination with totalizing mechanism,of operating mechanism therefor including a rotatable member, means forrotating said member, means for operatively connecting said memrotated apredetermined amount at each rotation of each of said rotatable members,an actuator for said mem;

her with its rotating means, means for operatively connecting saidmember with said totalizing mechanism, and means for disengaging saidconnecting means and stopping said member at the completion of eachrotation .thereof.

54. In a computing machine, operating mechanism including, incombination, a shaft, a collar. mounted on said shaft for rotationtherewith, a gear loosely mounted on said shaft, said collar and gearhaving cotiperating clutch members and being relatively movablelongitudinally of said shaft to engage and release said clutch members,a spring for holdin said clutch members in engagement, a hu carried byone of said relatively movable parts and having a lateral cam face and astop shoulder, and an arm adapted to engage said cam face to releasesaid clutch members and to engage said stop shoulder to stop therotation of said hub.

55. In a computing machine, the combination with totalizing mechanism,of actuating mechanism therefor, and mechanism for con trolling saidactuating mechanism'comprising stop mechanism including a stop arm,means for normally holding said stop arm in operative position, andmeans for withdrawing said stop arm and thereafter releasing the same.

56. In a computing machine, the combination. with totalizing mechanism,of actuating r zchanism therefor, and mechanism for controlling saidactuating mchanism comprising a stop mechanism including a stop arm,means for normally holding said stop arm in operative position, saidstop arm having a cam face terminating in a recess, and means forengaging said cam face to withdraw said stop arm, said means beingadapted thereafter to enter said recess to release said stop arm.

57. In a computing machine, in combina 59. In a computing machine, incombination, a totalizer, an actuator, mechanism for operativelyconnecting said totalizer and actuator, and means movable in onedirection to engage and move a part of said last named mechanism, saidmeans being movable in the opposite direction Without affecting saidpart.

60. In a computing machine, the combination with totalizing mechanism,of operat;

ing mechanism therefor including a rota table member, means for rotatingsaid member, means for operatively connecting said member with itsrotating means, means for operatively connecting said member with saidtotalizing mechanism, means for dis-' engaging said connecting means andstopping said member at the completion of each rotation thereof, andmeans movable to engage said disengagingmeans and thereafter to releasethe same.

61. In a computing machine, controlling mechanism, including a stop armhaving a cam face and a shouldered recess, a longitudinally movableoperating rod, a ratchet carried by said rod having teeth adapted toengage said cam face and to abut against the shoulder of said recess,and a pawl engaging said ratchet.

62. In a computing machine, in combinamechanism therefor comprising amotor and means connecting said motor and totalizing mechanism, saidmeans including an intermittent positive connection and a frictionalconnection.

63. In a computing machine, in combination, totalizing mechanism andoperatingmechanism therefor comprising a motor and means connecting saidmotor and totalizing mechanism, said means including an intermittentpositive connection, means for controlling said positive connection, anda continuously operative frictional connection.

64. In a computing machine, in combinavtion, tot alizing mechanism andoperating mechanism therefor comprising a motor and means connectingsaid motor and totalizing mechanism, said means including anintermittent positive connection, a frictional connection, and means foradjusting said frictional connection.

In testimony whereof I affix my signature, in presence of two witnesses.

AUGUSTUS G. SNYDER.

Witnesses:

CHAS. S. HYER, ARTHUR W. CALvE'r.

